Second, there is an influx starting of secondhand electric cars as the first adopters of electric lease cars have their contracts expiring / getting a new car, leading the lease car companies to sell the cars on.
It's a gradual process but it's happening.
So unless battery technology significantly improves the cost per performance ratio usable used EVs won't fall below a certain price point.
China is making EVs for ridiculous low prices, which is mainly due to the dramatic race to bankrupt the competition, before you yourself go bankrupt, that is happening on the Chinese domestic market.
The main thint driving EV depreciation right now, and this will likely continue for some time, is how quickly the technology is improving.
The range of an electric Fiat Panda will be complete shit compared to it's ICE equivalent.
Source: An owner of a cheap used Panda I use to travel across Europe every summer.
The current electric cars are all overengineered luxury cars in order to hit a profit margin and are extremely expensive to repair many normally minor faults. It's fine if you're the original owner under a warranty but a second hand buyer beware.
Theoretically electric cars should be super simple and reliable and have very cheap repairs, but those cars aren't being made by anyone today (maybe the Nissan Leaf?)